You're an airline, a lessor, a MRO, a CAMO - You have an aircraft change project or you have some repair definition needs: Meet us! SIER has capability to support through our EASA.21J.659 Approval
Approved by OEMs for Engineering services, SIER adds Aircraft Changes & Repairs per EASA Part21J to its services. Based on 50 years design know-how SIER can develop aircraft modifications or assess repairs per its DOA EASA.21J.659 for small (EASA CS23) & large (EASA CS25) aircrafts. SIER covers Flight deck & Cabin interiors, Cargo area, Powerplant install, External livery & markings.